Molding-machine.



No. 879,118. I 7 I PATENTED FEB.11, 1908. J. A. RATHBONE & J. T. .OROSSLEIY.

MOLDING MACHINE.

APPLICATION FILED MAR.5. 1908.

JOHN A HATHBONE OHN' 7" 'CFPOSSL. Y-

UNITED STATES JOHN A. RATHBONE AND JOHN T. CROSSLEY, or

UTI'GA, NEW YORK; SAID OBOSSLEY ASSIGNOR' TO SAID RATHBONE.

MOLDING-MACHINE.

T 0 (ZZZ whom it may cancer/t.

Be it known that we, JOHN A. RArHBoN-E and JOHN T. CRossLEY, citizens of the United States of America, the county of Oneida and State of New York, have. invented certain new and useful Improvements in Molding-Machines, of which the following is a specification, reference belng had therein. to the accompanying.draw 1ng3 Y The invention relates to molding machines in-which the sand within the mold-flask is compressed between opposed heads, one or both of which are provided with pattern faces.

It is the object of the present invention to provide means for positioning and embedding within the sand during the compression operation, cha'pletsor other members for support- 20 I in -cores,chills, etc.

ore particularly it isan object to provide means for holding the said chaplets or other members,"' so as to depend from the upper head or pattern into the flask, and for automatically releasing the same after the compression. stroke, whereby' they will be re- (proper position in the mold.

tained in In the rawings, Figure 1 is a vertical section through a portion. of a moldin machine tion its holding Fig. 6 is a section illustrat ng a chaplet-sup towhich our improvements are app ied; Fi s. 2, L3; and4 show various. modifications of t e chaplet-supporting means; Fig. 5 is a secillustrating the embedded chaplet and means disengaged therefrom;

porting bearing embedded within the sand, with a'chaplet rest-in thereupon, indicated in dotted'lines; and Fig. 7 illustrates another modification of chaplet-supportin' means.

Ourmachine is more particular y adapted for use in multiple molding in which portions of adjacentmold cavitiesare formed in the sand upon opposite sides of the flask by the relative movement of opposed patterns. For ordinary molding, where the pattern'is laced at the bottom of the flask and the san compacted thereabove, the. chaplets are easily positioned and embedded in the sand} for lnstance, the end of the chaplet which pro-- jects into the mold, cavity, is engaged with Specification of Letters Patent.

both residing at Utica, in I and to be embedded in the heads (1 Patented Feb. '1 1', 1 90s.

I about the chaplet to firmly embed the same. Thus, when the pattern is removed, the end of the chaplet will be accurately positioned in relation to the face of the mo other hand, in multiple moldin it is necessary to position chaplets in relation to the ld. On the p upper pattern as well as the lower and, as

movable in relation to themold slightly in its final posito accomplish the desired the former is flask and may vary tion, it is difficult I result. p v

In the present invention this difficulty has been overcome by securing and. maintaining the chaplets .or other members to be embedded in fixed relation to the upperpattern face during [the sand compression operation, and for then releasing the same to permit. the withdrawal of the pattern. I In the construction illustrated in Fig. 1, A

is the upper pattern head, B the lower pattern'head, C the mold flask supported upon the lower head, and D the sand frame. E are chaplets which are positioned in relation to the lower attern face by passing'through apertures a t erein and resting upon chairs 6 on the lower head. F are chaplets to be ositioned in relation to the upper molding ace, formed by'the pattern on the head A. To accomplish this result, the chaplets F are detachably coupled to the upper pattern head and are arranged to depend therefrom sand during the com ression thereof, The securing means emp oyed in the construction illustrated in I Fig. 1 is a series of magnets G, secured to the I upper' headA and. having their poles in alinement with apertures c in the u i face. Chaplets are inserted t e said aperl tures c in contact with the poles of the mag-.- I net andare held by the -latter in this position; I Thus, after the loose sand has been filled into ment of the headswill cause the simultaneous compacting of the sand and approach ofjthe inner ends of the chaplets E F. These inner ends are preferably provided with enlarged so as to give a greater bearing; upon the sand and to cause a strong compression of thethin layerof sand therebetween, the

per pattern the flask and sand frame, the relative move ultimate effect being to produce a rigid connaction from one chaplet to the other.

In Fig. '2 is illustrated a construction in which the chaplet F is retained in position pneumatically, its inner end abutting againstaseat e surrounding the suction conduit j: Y

then filled into the flask will be compacte engagement when the chaplet is held by the In Fig. 3 a mechanical coupling illustrated,

comprising a light spring 9 bearing against the cha let in a socket h for receiving the same. n Fig. 4., a double-pole electromag-, net is employed for holding; the. chaplet. In all of these constructions, the chaplet will be retained in fixed relation to the pattern during the compression of the .sand and .will then be released topermit the withdrawal of the pattern. Where the electro magnetic construction is employed, as in Figs. 1 ande,

' the releasing is effected by breaking the electric circuit and,'in the" construction of Fig.2, by cutting out the suction. In Fig. 3 the ten sion ofthe spring 9 is so slight that, while sufli cient to retain the chaplet in position during the sand compression, it will permit of disresistance ofthe sand. In Fig. 5'. is illustrated net, after withdrawal from the sand, also showing the end of the into the mold-cavity.

. y In Fig. 6, in placedf-a cha let, a chapletsup orting'bearing'G .em edded in the san its upper end constituting'ajrigidbearing, upon which the-.chapIetH may-beIsub se" uently placed. i

n Fig. 7, the engagement of-the u socket formed by re'si lent yieldable material, such as rubber .'m.- This will have'a slight chaplet projecting clamping eiiect which'will hold the chapletin.

I pos'itlon during the sand compresslon', but

will permitof its disengagement upon .the with rawal ofthepattern: v What we claim as our invention is '1. The combination with a su porting head forthe mold flask, a'superpose pattern and means for relatively moving the same to compact the sand against the pattern face,

of means for holding 'a member in fixed re lation 'to said pattern .face' during the operation of compactingthe sand, whereby the "said member is embedded in the sand. 1 v 1 2;, The combination with a mold flask supporting head, a superposed pattern and means for relatively moving the same to compact' the sand, of means for holding a member'depending from said-pattern face 1 during the operation of com actlng the. sand,

and for releasin said mem er to permit the withdrawal of t e pattern.

- 3.. .-In a molding machine the'combination with a down-facing pattern, of means for dehe pattern and mag-' chaplet is sup orted bythe 4 per end 't ereof'witha .ablyt'o the 'u' 9. Ina-mo .tachablyfsecur ing' a pendent member thereto to embed the same within the sand,

4. 'In a molding machine the combination with it'down-facing pattern and means for compacting. the sand thereagainst, of means for holding a pendent member in fixed relation tosaidpattern face; during the compacting operation, and for then releasingthe same. g I

5. In a moldmg machine thecombination with a down-facing 'pattern,-'of means forv holding a pendent chaplet in fixed relation to said pattern face during the o eration of compacting the sand, and for su sequently releasing the same tov permit th ithd of t e pattern, I

In a molding machine thecomb'inatioiiwithqa down-facing pattern, of magnetic means for holding a member in pendent relation' thereto durim the operation :of'compacting' the sand;

7. In a molding machine the combination netic,means ior-temporarilyholding a member-in pendent relation thereto during the operation pf. compacting the sand, and

-mea ns for subsequently deen'ergizing the magnet 'to' release said member. v

'8; In combination a mold flask, a pattern on the lower side, a; headed chaplet supported in predetermined relation to. such pat:

tern and an up r pattern face provided with a headedchapie t in linewith the first cha let, and means whereby it is secured detacliper pattern.-

curing to said pattern-and op osed member respectively opposed headed ciinplets.

10. In a mo ding machine, t e combination with op osed relatively movable patterns and a ask for containing the body of sand intermediate said patterns, of opposed headed chaplet'sdetachably i securedto the ding. machine, the combination I ofa pattern and an opposed relatively movable member, and means for detachably sewith a down-facing pattern, of electro-mag 

